SanDisk 500GB SSD PCIe 4.0 NVMe M.2 2280

The SanDisk WD Blue SN5100 is a budget Gen 4 drive with surprisingly strong random performance, landing in the 92nd percentile. But QLC NAND and no DRAM mean sustained writes suffer. It's worth buying at the low end of the price range, around USD 119, but skip it if you need more capacity or heavy write performance.

Sequential reads hit 6,600 MB/s and writes land at 5,600 MB/s, which puts this drive well above average for speed in our database. Random performance is the real surprise here, landing in the 92nd percentile. That's better than a lot of pricier drives. But the QLC NAND and lack of DRAM mean sustained writes will slow down once the SLC cache is exhausted. For big file transfers or heavy video editing, you'll feel that drop. For booting Windows, loading games, and general snappiness, it's more than enough. The 300 TBW endurance rating is solid for a budget QLC drive, and the 5-year warranty backs it up.

Against the Samsung 990 PRO, this drive gets smoked. The 990 PRO has DRAM, TLC NAND, and much higher sustained write performance. But it also costs a lot more. The Crucial T710 and WD_BLACK SN7100 are also faster and more feature-rich, but again, you pay for it. The Kingston FURY Renegade G5 sits in a similar budget tier but with better sustained performance thanks to its hardware. If you just need a cheap boot drive with good random performance, the SN5100 holds its own. If you're moving large files regularly or editing video, spend a bit more and get something with DRAM.

Pricing is all over the place. In the US, you'll see USD 119 to USD 150 across three listings. That's a USD 31 spread for the same drive. Best Buy has the lowest price at USD 119, so shop around before you buy. In Canada, prices range from CAD 148 to CAD 185, with Memory Express offering the best deal at CAD 148. At the low end, this is a decent value for a Gen 4 drive with solid random performance. At the high end, you're getting into territory where better drives with DRAM and TLC NAND start to look tempting.

The SanDisk WD Blue SN5100 is a 500GB M.2 2280 PCIe 4.0 NVMe drive aimed at budget builders who want Gen 4 speeds without paying flagship prices. It hits 6,600 MB/s sequential reads and 5,600 MB/s writes on paper, which is plenty fast for everyday use, gaming, and light creative work. But this is a QLC, DRAM-less drive, and that combo has real consequences once the cache fills up.

Our database puts its random performance in the 92nd percentile, which is genuinely impressive for a budget drive. Endurance is also strong at 300 TBW with a 5-year warranty. The catch? Capacity is only 500GB, and the feature set is bare bones. No heatsink, no fancy software tricks beyond Acronis for cloning. It's a simple drive for simple needs.

Skip this if you need more than 500GB of storage. Skip it if you regularly move large files, edit video, or run workloads that hammer sustained writes. The QLC NAND and DRAM-less design will bottleneck you hard. If you're building a high-end gaming rig or workstation, spend the extra cash on a drive with DRAM and TLC NAND. This is a budget drive for budget builds, not a performance part.

This drive is for budget builders who want Gen 4 speeds for everyday tasks. It's a solid boot drive for a basic gaming PC or office machine. The random performance is genuinely impressive for the price, and the 5-year warranty is reassuring. But if you're doing heavy content creation, large file transfers, or need more than 500GB, look elsewhere. The QLC and DRAM-less design will frustrate you under sustained load.